The Kenworth Mega Cab 6 Inch Extension Kit is a practical and beneficial product for Kenworth truck owners. This kit includes a 6-inch extension, a diamond plate tool tray, a structural stiffening ring, and a pre-assembled fiberglass panel. It also comes with pre-installed bracing and a sound deadening core for added convenience. The CNC cut and drilled panel ensures a precise fit, while the upholstery boot and class A gel coat finish enhance the overall appearance. With a window included and all necessary hardware and sealer, this kit is a perfect fit for most Kenworth models.